be concerned about /for/over 后可以跟动词吗?

be concerned about be concerned for be concerned over 的区别 be concerned for/with/in/about/over的区别,后面跟的词是什么词性? be concerned for/with/in/about/over的区别 be concerned with/about/for be concerned about的concerned是形容词吗?还是被动 be concerned about这个是形容词吗? be concerned about造句 关于be concerned about 是不是be动词后的动词不是跟现在分词就是跟过去分词?可以直接跟动词原形吗? be concerned for/with/about分别什么意思 be concerned about concern about be concerned about 中的concerned是什么词性?